Ever since I started shaving (my face) in 10th grade I've had terrible razor bumps/burn every single time. It was embarrassing and unsightly. I've gotten over this by just waiting longer in between shaves but one of the (many) products I tried was this spray called "Bump Eraser" which can be found at this link:http://www.bumperaser.com/conditioner.html
Basically it's a menthylated spray you use on your face and neck twice daily to reduce the appearance of the bumps. I found it was too weak to work on the face but it's DYNAMITE on the head. Much like HeadSlick shaving cream it is cool and refreshing on the scalp and does a good job of closing the pores. I'm not a very experienced head shaver (done it like 3 times) but I was so irritation-free after the first shave that I went against the grain the next day and still had no irritation which I found incredible. Just one man's opinion but if you're having troubles it might be worth a shot.